C++实现属性源代码（借鉴，模仿）

//property.h
#pragma once
#include <assert.h>
int const READ_ONLY = 1;
int const WRITE_ONLY = 2;
int const READ_WRITE = 4;
template<class CContainer, class CPropType, int nAccessType>
class CProperty
{
public:
	CProperty()
	{
		m_pobjContain = NULL;
		m_pfunSet = NULL;
		m_pfunGet = NULL;
	}
	~CProperty()
	{
	}
public:
	void SetContainer(CContainer* pContain)
	{
		m_pobjContain = pContain;
	}
	void SetSetFunction(void (CContainer::*pSet)(CPropType val) )
	{
		if ( (WRITE_ONLY == nAccessType) || (READ_WRITE == nAccessType) )
		{
			m_pfunSet = pSet;
		}
		else
		{
			m_pfunSet = NULL;
		}
	}
	void SetGetFunction(CPropType (CContainer::*pGet)() )
	{
		if ( (READ_ONLY == nAccessType) || (READ_WRITE == nAccessType) )
		{
			m_pfunGet = pGet;
		}
		else
		{
			m_pfunGet = NULL;
		}
	}
	CPropType operator = (const CPropType& val)
	{
		assert(NULL != m_pobjContain);
		assert(NULL != m_pfunSet);
		(m_pobjContain->*m_pfunSet)(val);
		return val;
	}
	operator CPropType()
	{
		assert(NULL != m_pobjContain);
		assert(NULL != m_pfunGet);
		return (m_pobjContain->*m_pfunGet)();
	}
private:
	CContainer*	m_pobjContain;
	void (CContainer::*m_pfunSet)(CPropType val);
	CPropType (CContainer::*m_pfunGet)();
};
//main.cpp
// UseProp.cpp : Defines the entry point for the console application.
//
#include "stdafx.h"
#include "Property.h"
#include <iostream>
using namespace std;
class CPropTest
{
public:
	CPropTest(int nVal = 0)
	{
		m_nData = nVal;
		m_nVal.SetContainer(this);
		m_nVal.SetSetFunction(&CPropTest::SetData);
		m_nVal.SetGetFunction(&CPropTest::GetData);
	}
	~CPropTest()
	{
	}
public:
	CProperty<CPropTest, int, READ_WRITE> m_nVal;
	int GetData()
	{
		return m_nData;
	}
	void SetData(int nVal)
	{
		m_nData = nVal;		
	}
private:
	int	m_nData;
};
int main()
{
	CPropTest obj;
	obj.m_nVal = 10;
	int nVal = obj.m_nVal;
	cout << obj.m_nVal << endl;
	return 0;
}